a well is dug out whose radius is 4 2 M and depth is 38 M the earth taken out - Maths - Surface Areas and Volumes of Solids

Question

a well is dug out whose radius is 4 2 M and depth is 38 M the earth
taken out from where is spread all over a rectangular field whose
dimensional 130 into 150 metre find the rise in the field

Varsha Chaurasia · Answer

Lets 1st find the volume of the mud dug out Formula used will be
r²h Hence we have volume = 22/7 × (7/2)² × 20
We also have the volume of the cuboid at L x B x H Here L = 22 and
B = 14, we need to find H Since the two volumes are equal, we have
22 x 14 x H = 22/7 × (7/2)² × 20 Hence we get the
Height of the platform as 2 5m

a well is dug out whose radius is 4.2 M and depth is 38 M the earth taken out from where is spread all over a rectangular field whose dimensional 130 into 150 metre find the rise in the field